<?php
/**
 * Smarty Internal Plugin Compile If
 *
 * Compiles the {if} {else} {elseif} {/if} tags
 *
 * @package Smarty
 * @subpackage Compiler
 * @author Uwe Tews
 */

/**
 * Smarty Internal Plugin Compile If Class
 */
class Smarty_Internal_Compile_If extends Smarty_Internal_CompileBase {
	/**
	 * Compiles code for the {if} tag
	 *
	 * @param array $args array with attributes from parser
	 * @param object $compiler compiler object
	 * @param array $parameter array with compilation parameter
	 * @return string compiled code
	 */
	public function compile($args, $compiler, $parameter) {
		$this->compiler = $compiler;
		// check and get attributes
		$_attr = $this->_get_attributes ( $args );
		$this->_open_tag ( 'if', array (1, $this->compiler->nocache ) );
		// must whole block be nocache ?
		$this->compiler->nocache = $this->compiler->nocache | $this->compiler->tag_nocache;
		if (is_array ( $parameter ['if condition'] )) {
			if ($this->compiler->nocache) {
				$_nocache = ',true';
				// create nocache var to make it know for further compiling
				if (is_array ( $parameter ['if condition'] ['var'] )) {
					$this->compiler->template->tpl_vars [trim ( $parameter ['if condition'] ['var'] ['var'], "'" )] = new Smarty_variable ( null, true );
				} else {
					$this->compiler->template->tpl_vars [trim ( $parameter ['if condition'] ['var'], "'" )] = new Smarty_variable ( null, true );
				}
			} else {
				$_nocache = '';
			}
			if (is_array ( $parameter ['if condition'] ['var'] )) {
				$_output = "<?php if (!isset(\$_smarty_tpl->tpl_vars[" . $parameter ['if condition'] ['var'] ['var'] . "]) || !is_array(\$_smarty_tpl->tpl_vars[" . $parameter ['if condition'] ['var'] ['var'] . "]->value)) \$_smarty_tpl->createLocalArrayVariable(" . $parameter ['if condition'] ['var'] ['var'] . "$_nocache);\n";
				$_output .= "if (\$_smarty_tpl->tpl_vars[" . $parameter ['if condition'] ['var'] ['var'] . "]->value" . $parameter ['if condition'] ['var'] ['smarty_internal_index'] . " = " . $parameter ['if condition'] ['value'] . "){?>";
			} else {
				$_output = "<?php \$_smarty_tpl->tpl_vars[" . $parameter ['if condition'] ['var'] . "] = new Smarty_Variable(\$_smarty_tpl->getVariable(" . $parameter ['if condition'] ['var'] . ",null,true,false)->value{$_nocache});";
				$_output .= "if (\$_smarty_tpl->tpl_vars[" . $parameter ['if condition'] ['var'] . "]->value = " . $parameter ['if condition'] ['value'] . "){?>";
			}
			return $_output;
		} else {
			return "<?php if ({$parameter['if condition']}){?>";
		}
	}
}

/**
 * Smarty Internal Plugin Compile Else Class
 */
class Smarty_Internal_Compile_Else extends Smarty_Internal_CompileBase {
	/**
	 * Compiles code for the {else} tag
	 *
	 * @param array $args array with attributes from parser
	 * @param object $compiler compiler object
	 * @param array $parameter array with compilation parameter
	 * @return string compiled code
	 */
	public function compile($args, $compiler, $parameter) {
		$this->compiler = $compiler;
		list ( $nesting, $compiler->tag_nocache ) = $this->_close_tag ( array ('if', 'elseif' ) );
		$this->_open_tag ( 'else', array ($nesting, $compiler->tag_nocache ) );
		
		return "<?php }else{ ?>";
	}
}

/**
 * Smarty Internal Plugin Compile ElseIf Class
 */
class Smarty_Internal_Compile_Elseif extends Smarty_Internal_CompileBase {
	/**
	 * Compiles code for the {elseif} tag
	 *
	 * @param array $args array with attributes from parser
	 * @param object $compiler compiler object
	 * @param array $parameter array with compilation parameter
	 * @return string compiled code
	 */
	public function compile($args, $compiler, $parameter) {
		$this->compiler = $compiler;
		// check and get attributes
		$_attr = $this->_get_attributes ( $args );
		
		list ( $nesting, $compiler->tag_nocache ) = $this->_close_tag ( array ('if', 'elseif' ) );
		
		if (is_array ( $parameter ['if condition'] )) {
			$condition_by_assign = true;
			if ($this->compiler->nocache) {
				$_nocache = ',true';
				// create nocache var to make it know for further compiling
				if (is_array ( $parameter ['if condition'] ['var'] )) {
					$this->compiler->template->tpl_vars [trim ( $parameter ['if condition'] ['var'] ['var'], "'" )] = new Smarty_variable ( null, true );
				} else {
					$this->compiler->template->tpl_vars [trim ( $parameter ['if condition'] ['var'], "'" )] = new Smarty_variable ( null, true );
				}
			} else {
				$_nocache = '';
			}
		} else {
			$condition_by_assign = false;
		}
		
		if (empty ( $this->compiler->prefix_code )) {
			if ($condition_by_assign) {
				$this->_open_tag ( 'elseif', array ($nesting + 1, $compiler->tag_nocache ) );
				if (is_array ( $parameter ['if condition'] ['var'] )) {
					$_output = "<?php }else{ if (!isset(\$_smarty_tpl->tpl_vars[" . $parameter ['if condition'] ['var'] ['var'] . "]) || !is_array(\$_smarty_tpl->tpl_vars[" . $parameter ['if condition'] ['var'] ['var'] . "]->value)) \$_smarty_tpl->createLocalArrayVariable(" . $parameter ['if condition'] ['var'] ['var'] . "$_nocache);\n";
					$_output .= "if (\$_smarty_tpl->tpl_vars[" . $parameter ['if condition'] ['var'] ['var'] . "]->value" . $parameter ['if condition'] ['var'] ['smarty_internal_index'] . " = " . $parameter ['if condition'] ['value'] . "){?>";
				} else {
					$_output = "<?php }else{ \$_smarty_tpl->tpl_vars[" . $parameter ['if condition'] ['var'] . "] = new Smarty_Variable(\$_smarty_tpl->getVariable(" . $parameter ['if condition'] ['var'] . ",null,true,false)->value{$_nocache});";
					$_output .= "if (\$_smarty_tpl->tpl_vars[" . $parameter ['if condition'] ['var'] . "]->value = " . $parameter ['if condition'] ['value'] . "){?>";
				}
				return $_output;
			} else {
				$this->_open_tag ( 'elseif', array ($nesting, $compiler->tag_nocache ) );
				return "<?php }elseif({$parameter['if condition']}){?>";
			}
		} else {
			$tmp = '';
			foreach ( $this->compiler->prefix_code as $code )
				$tmp .= $code;
			$this->compiler->prefix_code = array ();
			$this->_open_tag ( 'elseif', array ($nesting + 1, $compiler->tag_nocache ) );
			if ($condition_by_assign) {
				if (is_array ( $parameter ['if condition'] ['var'] )) {
					$_output = "<?php }else{?>{$tmp}<?php  if (!isset(\$_smarty_tpl->tpl_vars[" . $parameter ['if condition'] ['var'] ['var'] . "]) || !is_array(\$_smarty_tpl->tpl_vars[" . $parameter ['if condition'] ['var'] ['var'] . "]->value)) \$_smarty_tpl->createLocalArrayVariable(" . $parameter ['if condition'] ['var'] ['var'] . "$_nocache);\n";
					$_output .= "if (\$_smarty_tpl->tpl_vars[" . $parameter ['if condition'] ['var'] ['var'] . "]->value" . $parameter ['if condition'] ['var'] ['smarty_internal_index'] . " = " . $parameter ['if condition'] ['value'] . "){?>";
				} else {
					$_output = "<?php }else{?>{$tmp}<?php \$_smarty_tpl->tpl_vars[" . $parameter ['if condition'] ['var'] . "] = new Smarty_Variable(\$_smarty_tpl->getVariable(" . $parameter ['if condition'] ['var'] . ",null,true,false)->value{$_nocache});";
					$_output .= "if (\$_smarty_tpl->tpl_vars[" . $parameter ['if condition'] ['var'] . "]->value = " . $parameter ['if condition'] ['value'] . "){?>";
				}
				return $_output;
			} else {
				return "<?php }else{?>{$tmp}<?php if ({$parameter['if condition']}){?>";
			}
		}
	}
}

/**
 * Smarty Internal Plugin Compile Ifclose Class
 */
class Smarty_Internal_Compile_Ifclose extends Smarty_Internal_CompileBase {
	/**
	 * Compiles code for the {/if} tag
	 *
	 * @param array $args array with attributes from parser
	 * @param object $compiler compiler object
	 * @param array $parameter array with compilation parameter
	 * @return string compiled code
	 */
	public function compile($args, $compiler, $parameter) {
		$this->compiler = $compiler;
		// must endblock be nocache?
		if ($this->compiler->nocache) {
			$this->compiler->tag_nocache = true;
		}
		list ( $nesting, $this->compiler->nocache ) = $this->_close_tag ( array ('if', 'else', 'elseif' ) );
		$tmp = '';
		for($i = 0; $i < $nesting; $i ++)
			$tmp .= '}';
		return "<?php {$tmp}?>";
	}
}

?>